| 摘要 |
PROBLEM TO BE SOLVED: To allow cancellation or redoing of past operation even if shared data or edit data are operated over a plurality of times. SOLUTION: A software development support system has a cancel operation database 9 which saves operation history canceled from an operation history of an edit database 2 or an operation history database 3, saves the operation history in an edit database or an operation history database according to a development work of a developer, saves canceled operation in the cancel operation database, and restores for redoing of operation, the operation history in the edit database or the operation history database according to selection of redoing of operation. COPYRIGHT: (C)2009,JPO&INPIT
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